Shorebird Flyway Welfare and Stopover Habitat Loss

Migratory shorebirds undertaking intercontinental flyways depend on a network of stopover sites for refueling, and the loss of these sites creates acute welfare impacts during migration.

Key Facts

The East Asian-Australasian Flyway supports 50 million migratory birds including 37 threatened species
Red knots fly up to 30,000 km annually between Arctic breeding grounds and southern wintering sites
Delaware Bay in the US east coast is the most critical North American stopover for Red knots, fueled by horseshoe crab eggs
Yellow Sea tidal flats — the primary stopover for East Asian flyway shorebirds — have lost 65% of area since 1950
Shorebirds arriving at degraded stopovers with inadequate food leave underweight, with lower survival rates
Bar-tailed godwits fly non-stop from Alaska to New Zealand — approximately 11,700 km — in 7-9 days
Climate change is advancing the timing of food availability at breeding grounds while migration timing is slower to shift
International flyway agreements exist but lack enforcement mechanisms for habitat protection at stopover sites

Welfare Considerations

The welfare of migratory shorebirds is inseparable from the integrity of the habitat network they depend on. A shorebird arriving at a degraded stopover site faces a stark welfare challenge: continue migration without adequate fuel, which risks death or severe deterioration, or remain longer at a low-quality site, delaying arrival at breeding grounds. The mismatch between biological needs and available habitat creates a form of distributed, ongoing welfare harm spread across hundreds of millions of individual animal experiences each migration season. Stopover habitat loss — driven by coastal development, aquaculture expansion, and land reclamation — translates directly into individual animal suffering and population decline. International conservation investment in stopover site protection is both a conservation and welfare priority.

What You Can Do

Support the East Asian-Australasian Flyway Partnership and equivalent organizations protecting critical stopover sites
Advocate for wetland protection policies that explicitly include migratory shorebird stopover habitat
Participate in or support shorebird monitoring programs like the International Shorebird Survey
Reduce seafood consumption from aquaculture operations that have expanded onto critical tidal flat habitat